<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-17 -107 05:50:00.000"
URSICode="SMK29"
StationName="Santa Maria"
GeoLatitude="-29.69"
GeoLongitude="307.81"
Source="Ionosonde"
SourceType="DPS-4D"
ScalerType="auto">
<SystemInfo UMLStationID="129">
<FrequencyStepping StartFrequency="2.0" StopFrequency="15.0">
<LinearStepping Step="0.025" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="2.5" Units="km" />
</RangeStepping>
<AutoScaler Name="Artist5" Version="500200" ArtistFlags="2 2 0 0 0 0 0 0 0 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.17 (107) 05:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610704170550001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.489" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.038" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.825" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="277.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="277.500" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="110.000" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="20.000" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="300.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="269.772" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="250.263" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.345" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.005" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.939" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.702" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.150" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.040" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4 3.425 3.45
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
277.500 280.000 282.500 285.000 287.500 290.000 295.000 297.500 300.000 304.574 309.787 315.783 322.753 330.954 340.747
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 90 0 93 93 81 81 78 78 87 0 0 90 87 87
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="404">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.47966 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.95934 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 219.439 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 269.772 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21213934 0.23390245 0.2526677 0.26895854 0.28319094 0.29565945 0.30659118 0.31614733 0.32445762 0.331616 0.33769703 0.34275886 0.34684667 0.3499937 0.352225 0.3535571 0.354 0.3538872 0.35362422 0.35321164 0.35257575 0.35179353 0.3507929 0.34957802 0.34822688 0.34674317 0.3449877 0.34304082 0.3409804 0.3386055 0.33613524 0.33337665 0.33047858 0.32729307 0.32390562 0.32030582 0.31645814 0.3123355 0.30797482 0.3033089 0.29839063 0.29315403 0.2876503 0.28178698 0.27551717 0.2689168 0.26188377 0.25442025 0.24647512 0.23798795 0.22889905 0.21916255 0.20879531 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.20017168 0.20439321 0.20861474 0.21283627 0.2170578 0.22127932 0.22550085 0.22972238 0.23394391 0.23816544 0.24238697 0.24660851 0.25083002 0.25505155 0.25927308 0.2634946 0.26771614 0.27193767 0.2761592 0.28038076 0.28460228 0.2888238 0.29304534 0.29726687 0.3014884 0.30570993 0.30993146 0.314153 0.3183745 0.32259604 0.32681757 0.3310391 0.33526063 0.33948216 0.3437037 0.34792522 0.35214674 0.354 0.37358147 0.40992665 0.44821402 0.4885441 0.53100973 0.57569474 0.62268907 0.6720643 0.7238942 0.77821994 0.83511186 0.89457285 0.9566493 1.0213267 1.0886066 1.1584367 1.2307823 1.3055508 1.3826431 1.4619324 1.5432619 1.6264577 1.7113101 1.7975867 1.8850282 1.9733349 2.0622241 2.151353 2.2403853 2.3289433 2.4166796 2.5031786 2.5880857 2.6709945 2.7515268 2.8292863 2.9039016 2.9750137 3.042258 3.1053207 3.1638682 3.2176228 3.2663064 3.3096848 3.3475213 3.3796458 3.4058826 3.4261103 3.440219 3.4481416 3.45 3.4499192 3.4476907 3.4425094 3.4345112 3.4238331 3.410612 3.3949845 3.3770857 3.357049 3.3350062 3.3110862 3.2854152 3.2581155 3.229307 3.1991053 3.1676219 3.1349652 3.1012387 3.0665426 3.0309725 2.9946194 2.957571 2.9199104 2.881717 2.8430657 2.8040283 2.7646716 2.7250595 2.6852524 2.6453066 2.6052754 2.5652084 2.5251524 2.4851515 2.4452457 2.4054735 2.3658698 2.3264675 2.2872965 2.2483852 2.2097588 2.171441 2.1334538 2.0958164 2.0585465 2.021661 1.985174 1.9490985 1.9134464 1.8782281 1.8434523 1.8091272 1.7752595 1.7418548 1.708918 1.6764529 1.6444625 1.612949 1.581914 1.551358 1.5212815 1.4916838 1.4625641 1.433921 1.4057523 1.3780557 1.3508286 1.3240678 1.2977699 1.2719309 1.2465472 1.2216142 1.1971276 1.1730825 1.1494743 1.1262977 1.1035477 1.0812191 1.0593063 1.0378038 1.0167062 0.99600774 0.97570276 0.9557856 0.9362503 0.91709125 0.8983026 0.8798785 0.8618132 0.8441009 0.82673573 0.80971205 0.7930241 0.77666616 0.7606326 0.74491775 0.729516 0.714422 0.69963014 0.685135 0.6709313 0.6570136 0.64337677 0.6300156 0.61692506 0.6040999 0.59153533 0.5792264 0.5671682 0.5553559 0.543785 0.5324507 0.5213484 0.5104738 0.4998223 0.48938963 0.47917148 0.46916366 0.45936203 0.4497625 0.44036105 0.43115377 0.4221368 0.41330636 0.40465868 0.3961901 0.38789707 0.37977603 0.3718235 0.36403605 0.3564104 0.34894326 0.34163138 0.3344716 0.32746089 0.32059616 0.31387442 0.30729276 0.3008483 0.2945383 0.28835988 0.28231043 0.27638727 0.27058783 0.2649095 0.25934985 0.2539064 0.24857675 0.24335854 0.23824948 0.23324731 0.22834982 0.22355483 0.21886024 0.21426393 0.20976388 0.2053581 0.2010446 0.1968215 0.1926869 0.18863896 0.18467586 0.18079585 0.1769972 0.17327821 0.16963723 0.16607262 0.16258278 0.15916616 0.15582123 0.1525465 0.14934048 0.14620174 0.1431289 0.14012057 0.13717538 0.13429204 0.13146922 0.12870568 0.12600018 0.12335149 0.12075843 0.11821983 0.115734555 0.113301486 0.11091952 0.1085876 0.10630467 0.104069695 0.10188168 0.09973965 0.097642615 0.09558965 0.09357983 0.091612235 0.089686 0.08780024 0.085954115 0.08414678 0.08237744 0.08064529 0.07894955 0.07728944 0.07566424 0.07407319 0.07251559 0.070990734 0.069497935 0.06803651 0.066605814 0.065205194 0.06383402 0.062491667 0.06117754 0.05989104 0.05863159 0.057398617 0.05619157 0.055009898 0.053853076 0.052720573 0.05161188 0.050526503

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="3.45" PeakHeight="269.772" Num="5" zHalfNm="250.263" Error="0.713">
-50.249 -0.205 -0.004 0.13 -0.005
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0205" EndDistance="6480.001" A="-5.5027394E11" B="1.69837632E8" C="-13104.63" Error="0.0016"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6516.48" A="-1.14266653E11" B="3.5267484E7" C="-2721.131" Error="0.00175"/>
<QuasiParabolic ID="2" StartDistance="6516.48" EndDistance="6552.959" A="0.0" B="-1414.708" C="0.25713181" Error="0.0311"/>
<QuasiParabolic ID="3" StartDistance="6552.959" EndDistance="6584.0" A="5.4262653E10" B="-1.661716E7" C="1272.2186" Error="0.0311"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6588.0" A="-2.21660201E11" B="6.7199016E7" C="-5092.9224" Error="0.00323"/>
<QuasiParabolic ID="5" StartDistance="6588.0" EndDistance="6594.0" A="7.7698637E12" B="-2.35888614E9" C="179036.19" Error="0.0318"/>
<QuasiParabolic ID="6" StartDistance="6594.0" EndDistance="6597.0" A="2.44800658E12" B="-7.4473453E8" C="56640.707" Error="0.00742"/>
<QuasiParabolic ID="7" StartDistance="6597.0" EndDistance="6627.0" A="1.38985016E13" B="-4.21615923E9" C="319747.03" Error="0.0385"/>
<QuasiParabolic ID="8" StartDistance="6627.0" EndDistance="6639.772" A="-3.7296884E13" B="1.12343859E10" C="-845980.0" Error="0.0102"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="109.439" Depth="0.154"/>
<TopsideChapman PeakHeight="269.772" PeakDensity="147673.7" PeakScaleHeight="14.702" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
